interference‚ which lead to nodes and antinodes in the wave.The nodes could be marked because they were silent‚ and the antinodes were loud. Hypothesis We expect to find a linear relationship between wavelength and period because the speed of sound is constant. The frequency will inversely change the wavelength‚ leading to a constant velocity. Methods The speaker at the top was set to various frequencies and water gradually filled into the resonance tube. The nodes were observed by the class auditorily
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of light‚ travels in wavelengths and is measured in nanometres (nm). Pigments within matter‚ such as plants‚ absorb varying wavelengths of light. The absorption spectrum can be defined as a graphical representation of a pigment’s ability to absorb light against varying wavelengths (nm). The pigments light absorbing ability is measured using a spectrophotometer. An action spectrum can be defined as the graphical representation of the rate of photosynthesis against wavelengths of light. The graph shows
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1. Horizontal Cable- The cabling between and including the telecommunications outlet and the horizontal cross-connect. 2. Backbone Cable- A cable connection between telecommunications or wiring closets‚ floor distribution terminals‚ entrance facilities‚ and equipment rooms either within or between buildings. 3. Patch Cords- Any flexible piece of cable that connects one network device to the main cable run or to a patch panel that in turn connects to the main cable run. 4. Connectors- A device attached
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>>> transverse (perpendicular)‚ longitudinal (parallel) * define and apply the following terms to the wave model: medium‚ displacement‚ amplitude‚ period‚ compression‚ rarefaction‚ crest‚ trough‚ transverse waves‚ longitudinal waves‚ frequency‚ wavelength‚ velocity Mechanical Waves -require a medium to propagate -involves the transfer of energy through a medium by the motion of particles of the medium itself -particles moves as oscillations or vibrations around a fixed point Transverse waves (e
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of transverse waves. A longitudinal wave is a wave in which its particles vibrate parallel to their direction of propagation. Sound waves‚ earthquake waves and tsunami waves are examples of longitudinal waves. Some terms to be considered are: Wavelength: the distance between two successive identical points Frequency: number of waves that pass through a fixed point in a second Amplitude: maximum displacement that particles can move to and from their equilibrium position Crest: Highest points
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compared to clear dry days. Why do we have Blue Sky? The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere‚ most of the longer wavelengths pass straight through. Little of the red‚ orange and yellow light is affected by the air. However‚ much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look‚ some
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The graph below is a plot of displacement versus time of a mass oscillating on a spring. 73. At which point on the graph is the acceleration of the mass zero? a. A c. C b. B d. D 74. At which point on the graph is the velocity of the mass zero? a. A c. C b. B
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spring constant x is the displacement In this lab‚ we would have to know about the Simple Harmonic Motion (SHM). T is the period m is the mass k is the spring constant The characteristics of a wave are wavelength‚ amplitude‚ period and frequency. Wavelength is the length of the repeating wave shape. Amplitude is the maximum displacement or the greatest distance from the equilibrium point. Period is the time‚ in seconds‚ required to complete one cycle‚ and frequency is the number
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Baldeo Persaud NT1310 Unit 9 Exercise 1 Light Source and Components-Definitions 1. Forward Biased LED: A bias voltage that is applied to a pn-junction in the direction that causes a large current flow; used in some semiconductor diode circuits. 2. Incoherent Light: Light in which the electric and magnetic fields of photons are completely random in orientation. Incoherent light is typically emitted from light bulbs and LEDs. 3. Laser: Acronym for light amplification by stimulated emission of radiation
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Standing wave Standing waves in a string — the fundamental mode and the first 6 overtones. A standing wave‚ also known as a stationary wave‚ is a wave that remains in a constant position. This phenomenon can occur because the medium is moving in the opposite direction to the wave‚ or it can arise in a stationary medium as a result of interference between two waves traveling in opposite directions. In the second case‚ for waves of equal amplitude travelling in opposing directions‚ there is on
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